CN103818814B - Safety guard and the moving sidewalk or the escalator installation that comprise it - Google Patents
Safety guard and the moving sidewalk or the escalator installation that comprise it Download PDFInfo
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- CN103818814B CN103818814B CN201310354033.1A CN201310354033A CN103818814B CN 103818814 B CN103818814 B CN 103818814B CN 201310354033 A CN201310354033 A CN 201310354033A CN 103818814 B CN103818814 B CN 103818814B
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Abstract
The present invention relates to safety guard, it is for detecting falling of circulating motion object, and safety precautions is performed to load transfer device and personnel, wherein, on the circulation tape that described circulating motion object is installed in the circulating movement apparatus of described load transfer device or chain, and described circulation tape or chain comprise load portion section and unloaded portion section; It is characterized in that: described safety guard comprises first detection module, control module, execution module and brake module; Described first detection module comprises sensor and support; Described in any one in described load portion section, circulating motion object falls, described first detection module can detect that object falls in real time.The invention still further relates to the moving sidewalk or escalator installation that comprise safety guard as herein described.Advantageous Effects of the present invention is: machinery and electrical structure are more succinct, install more convenient, safety and reliability.
Description
Technical field
The present invention relates to safety guard; it is for detecting falling of circulating motion object; and safety precautions is performed to load transfer device and personnel; wherein; on the circulation tape that described circulating motion object is installed in the circulating movement apparatus of described load transfer device or chain, and described circulation tape or chain comprise load portion section and unloaded portion section.The invention still further relates to the moving sidewalk or escalator installation that comprise safety guard as herein described.
Background technology
Pedal on moving sidewalk or escalator installation is installed on circulation link chain, when moving sidewalk or escalator installation run, if pedal accidental falling, can step on empty danger.In addition, pedal accidental falling also may damage other zero of moving sidewalk or escalator installation.Therefore pedal accidental falling detected, just stop the running of moving sidewalk or escalator installation immediately, to equipment or be all protect timely and effectively concerning personnel.
Application number be 201020632373.8 Chinese utility model patent disclose pedal protection device on moving sidewalk, comprise the pedal that can be arranged on described moving sidewalk two ends and return rail horizontal segment below the pedal at the revolution position near this moving sidewalk for there is to send when losing the inductive switch of the signal making described moving sidewalk out of service at described pedal.
Application number be 201210016777.8 Chinese invention patent application disclose a kind of mechanical type footboard loss safety guard and there is the moving sidewalk of this safety guard, wherein, footboard loss safety guard comprises: turning cylinder; First pivoted arm and the second pivoted arm; Contact roller, is arranged on the external part of the first pivoted arm, and makes the second pivoted arm be in non-alert locations with the lower surface Structure deformation of automatic sidewalk pedal; Bringing-back mechanism, comprises the elastic component making the second pivoted arm move to alert locations; Induction installation, is arranged in the path of motion of the second pivoted arm, contacts to make induction installation produce pedal to lose cue when the second pivoted arm moves to alert locations with induction installation.
The open a kind of novel large cutting machine of patent documentation CN201645554U unloads roller safety guard; roll up (3), right cutting machine slave end cylinder top (4) by left cutting machine drive side cylinder top (1), steel rider core (2), film, unload volume adaptor union (5), slide rail (6), opto-electronic pickup (7) unload volume connector holder (8) and form, it is characterized in that unloading and roll up adaptor union both sides an opto-electronic pickup is respectively installed.Top and the top centre of right cutting machine drive side cylinder of left cutting machine drive side cylinder is provided with steel rider core, is enclosed within steel rider core by film volume.Then unload volume adaptor union both sides an opto-electronic pickup is respectively installed and control relay, in bottom, slide rail is installed and by unload volume connector holder support.When unloading volume adaptor union and opto-electronic pickup does not respond to, intermediate relay does not work, and steel rider can not unload.Unload volume adaptor union and opto-electronic pickup intermediate relay work when responding to, steel rider can unload.
Patent documentation CN202323328U discloses a kind of cropping receiving device of flat braiding machine, relates to textile machine apparatus field.The utility model comprises base plate and biside plate, biside plate is erected in the two ends of base plate respectively, wherein, side plate in biside plate is provided with for the optical signal transmitter to another side plate utilizing emitted light signal, another side plate is provided with the opto-electronic pickup for receiving optical signals, and the signal output part of this opto-electronic pickup is connected to the control end of flat braiding machine.The utility model can adapt to various types of textile product, and all can respond in time after various types of textile product drops and the signal that drops be sent to the control end of flat braiding machine, controls knitting program terminate by control end.
Patent documentation CN1038620 discloses a kind of device of testing cigarette.There is a calibration unit (13) to be arranged within cigarette hopper (10), and there is the inspection passage (18) of multiple vertical layout.Checked by opto-electronic pickup in this inspection passage inner wrap strip, flawless cigarette drops on cigarette buttress (21) continuously in the mode of free-falling body.Fitly, without damage carry to cigarette storehouse (15) in order to ensure verified cigarette, in the below of inspection passage (18), a guiding channel (28) is installed, as the continuity of inspection passage, guiding channel extend near cigarette buttress (21) top certain a bit.Guiding channel (28) is limited by the plane guiding channel wall (29) vertically arranged, guarantees that cigarette is in a kind of neat mode with without placing obliquely.
Pedal fall safety fender guard of the prior art must forward fixed position place in pedal neutral of falling just can detect fault, there is hysteresis quality the time, thus still can not eliminates safe hidden trouble.
Safety guard of the prior art will apply to detect falling and performing safety precautions to load transfer device and personnel of circulating motion object, still needs to carry out important technical improvement.
Summary of the invention
In order to solve deficiency of the prior art, the object of the present invention is to provide the pedal mode of operation that can monitor and detect moving sidewalk or escalator installation in real time and it being performed to the safety guard of safety precautions.
For this purpose, the present invention proposes safety guard, it is for detecting falling of circulating motion object, and safety precautions is performed to load transfer device and personnel, wherein, on the circulation tape that described circulating motion object is installed in the circulating movement apparatus of described load transfer device or chain, and described circulation tape or chain comprise load portion section and unloaded portion section;
It is characterized in that: described safety guard comprises first detection module, control module, execution module and brake module;
Described first detection module comprises sensor and support, and wherein, described sensor comprises emission element and receiving-member, and described support is used for fixing described sensor, and described support is installed on the static body of described load transfer device; Circulating motion object described in any one in described load portion section fall and through space described emission element and described receiving-member, described first detection module can detect that object falls in real time, and to described control module output detection signal;
Described control module can receive the detection signal that described first detection module exports, and exports executive signal to described execution module;
Described execution module can receive the executive signal that described control module exports, and to described brake module output action signal;
Described brake module can receive the actuating signal that described execution module exports, and circulating movement apparatus described in stop.
According to other technical scheme of the present invention, it can also comprise following one or more technical characteristic.As long as the combination of such technical characteristic is enforceable, the new technical scheme formed thus all belongs to a part of the present invention.
Alternatively, with regard to gravitational vector direction, described sensor is arranged on the below of the described load portion section of described circulation tape or chain.
Preferably, with regard to gravitational vector direction, the emission element of described sensor is arranged on the below of described load portion section by means of the first bracket of described support, and is positioned at the first end of described load portion section; Further, the receiving-member of described sensor is arranged on the below of described load portion section by means of the second bracket of described support, and is positioned at the second end of described load portion section.
Preferably, described sensor is correlation type opto-electronic pickup; When described circulating motion object fall and through space the described emission element of described correlation type opto-electronic pickup and described receiving-member, described circulating motion object interdicts the light communication between described emission element and described receiving-member, and trigger described first detection module generation detection signal, thus described first detection module has detected that object falls and to described control module output detection signal.
Preferably, the described emission element of described correlation type opto-electronic pickup can launch multi beam light, and wherein, described multi beam light is basically perpendicular to the Width of described circulation tape or chain; Further, described multi beam light arranges by the whole width of the spacing determined along described circulation tape or chain, and wherein, the described spacing determined is less than the smallest dimension in the three dimension scale of described circulating motion object.
Alternatively, described sensor is correlation type infradred sensor; When described circulating motion object fall and through space the described emission element of described correlation type infradred sensor and described receiving-member, described circulating motion object interdicts the infrared communication between described emission element and described receiving-member, and trigger described first detection module generation detection signal, thus described first detection module has detected that object falls and to described control module output detection signal.
Alternatively, described safety guard also comprises the second detection module, and wherein, with regard to gravitational vector direction, described second detection module is arranged on the below of the described unloaded portion section of described circulation tape or chain;
Described second detection module comprises sensor and support composition, wherein, the described sensor of described second detection module comprises emission element and receiving-member, and described support is used for fixing described sensor, and described support is installed on the static body of described load transfer device; When described circulating motion object fall and through space the described emission element of described second detection module and described receiving-member, described second detection module has detected that object falls and to described control module output detection signal;
Described control module can receive the detection signal that described first detection module exports, and exports executive signal to described execution module;
Described execution module can receive the executive signal that described control module exports, and to described brake module output action signal;
Described brake module can receive the actuating signal that described execution module exports, and circulating movement apparatus described in stop.
Preferably, described control module comprises programmable logic controller (PLC), and wherein, described programmable logic controller (PLC) can receive the detection signal that described first detection module exports, and exports executive signal to described execution module.
Preferably, described execution module comprises operation contactless switch signal generation unit and band-type brake contactless switch signal generation unit, wherein, described operation contactless switch signal generation unit produces and runs contactless switch signal, for controlling the operation contactless switch of the feeding electric motors of described load transfer device, and described band-type brake contactless switch signal produces band-type brake contactless switch signal, for controlling the band-type brake contactless switch of the motor internal contracting brake of described load transfer device.
The present invention also proposes moving sidewalk or escalator installation, it is characterized in that: described moving sidewalk or escalator comprise safety guard as herein described, wherein:
Described load transfer device is described moving sidewalk or escalator installation;
Described circulating movement apparatus comprises the footway of circulation or the ladder of circulation;
The footway of described circulation or the ladder of circulation comprise described circulation link chain;
Described circulating motion object is mounted in the pedal on the footway of described circulation or the ladder of circulation.
Compared with prior art, Advantageous Effects of the present invention is: machinery and electrical structure are more succinct, and install more convenient, can monitor in real time, the very first time pinpoints the problems and takes safety method, safety and reliability.
Accompanying drawing explanation
With reference to accompanying drawing, feature of the present invention, advantage and characteristic are able to better understanding, in accompanying drawing by the description of detailed description of the invention hereafter:
Fig. 1 is the structural representation of specific embodiments of the invention, wherein, for clarity sake, for load transfer device, the circulation link chain of its circulating movement apparatus is only shown;
Fig. 2 is the partial enlarged drawing in the A portion of Fig. 1, and it illustrates the emission element of the first detection module in specific embodiments of the invention;
Fig. 3 is the partial enlarged drawing in the B portion of Fig. 1, and it illustrates the receiving-member of the first detection module in specific embodiments of the invention;
Fig. 4 is the partial circuit schematic diagram of the safety guard of specific embodiments of the invention.
In the drawings, same or similar element uses same figure notation, and different elements uses different figure notations, wherein:
1 first detection module
110 sensors
111 emission elements
112 receiving-members
120 supports
2 control modules
201 programmable logic controller (PLC)s, PLC
3 execution modules
4 detect light beam
5 photoelectric detecting signals
6 run contactless switch signal
7 band-type brake contactless switch signals
800 circulation tape or chains
801 load portion sections
802 unloaded portion sections
808 circulating motion objects
Further, as shown in Figure 1, arrow G represents the direction of gravitational vector.And specify, for height and position, the position of arrow G tip indication is below, the position at arrow G arrow tail place is just top relatively.Double-head arrow L is defined as the longitudinal direction of circulation link chain, perpendicular to Fig. 1 plan and be transverse direction or the Width of circulation link chain perpendicular to the direction of double-head arrow L.
Detailed description of the invention
With reference to Fig. 1-4, according to the main embodiment of this invention, safety guard of the present invention falls mainly for detection of circulating motion object, and performs safety precautions to load transfer device and personnel.Here, circulating motion object refers to the object moved on a closed circular path.Load transfer device can be the equipment of conveying personnel or the equipment of conveying article.In normal load transfer device, if having parts to come off or foreign object falls wherein, all may bring infringement to load transfer device or there is potential safety hazard.Especially relating to the load transfer device of personnel, the requirement of its safe operation is very high, once find that parts come off or foreign object falls wherein, just should stop the running of load transfer device immediately, guarantee the safety of personnel.
On the circulation tape that described circulating motion object 808 is installed in the circulating movement apparatus of described load transfer device or chain 800, and described circulation tape or chain 800 comprise load portion section 801 and unloaded portion section 802.Load transfer device especially circulation load transfer device generally all comprises circulating movement apparatus, and described circulating movement apparatus has tape or the chain of one or more closed ring usually.As shown in Figure 1, the circulating movement apparatus of moving sidewalk or escalator installation comprises chain and at least two sprocket wheels of at least one closed ring.The pedal that occupant stands on it is fixedly mounted on described chain successively by various forms of attaching parts.Be be divided into load portion section 801 and unloaded portion section 802 two parts are conveniently hereinafter to the detailed description of safety guard by circulation tape or chain 800 people.Here, load portion section 801 refers in load transfer device operational process, can be used for the circulation tape corresponding to region of carrying personnel or article or portion of chain, as shown in Figure 1, the A-B straight length portion of circulation tape or chain 800 corresponds to the load portion section 801 of circulation tape or chain 800.In like manner, zero load portion section 802 refers to circulation tape corresponding to the region being not used in carrying personnel or article or portion of chain, as shown in Figure 1, the other parts except A-B straight length portion of circulation tape or chain 800 correspond to the unloaded portion section 802 of circulation tape or chain 800.Because load portion section 801 bears the weight of load such as human body when described load transfer device real time kinematics, come off so described circulating motion object is the easiest in load portion section 801.
Described safety guard comprises first detection module 1, control module 2, execution module 3 and brake module; these functional modules are electrically connected to each other and form described safety guard together; and detection module, control module and execution module generate detection signal 4, executive signal, actuating signal respectively, the communication for each intermodule connects and response.
Particularly, described first detection module 1 comprises sensor 110 and support 120, and wherein, described sensor comprises emission element 111 and receiving-member 112, and described support is used for fixing described sensor, and described support is installed on the static body of described load transfer device.Such configuration makes described first detection module 1 not with described circulation tape or chain 800 circulating motion, but keeps quiescence relative to ground.When described load transfer device be moving sidewalk or escalator installation, described static body can be that the frame, wallboard etc. of moving sidewalk or escalator installation keeps motionless parts relative to ground.
In described safety guard, under normal circumstances, the signal and communication of batch (-type) or not step rule is there is between the described emission element 111 of described sensor and described receiving-member 112, wherein, described not batch mode signal is such as continuous print visible light beam, continuous print infrared beam or continuous print ultraviolet light beam etc.; Described batch mode signal is such as the ultraviolet light beam etc. of the visible light beam of pulse, the infrared beam of pulse or pulse, the time gap of its pulse is enough little, when there being entity article through line described emission element 111 and receiving-member 112, have at least twice pulsed light beam to hit described object, can guarantee that sensor is fallen between described emission element 111 and described receiving-member 112 to be determined with object by the disappearance of impulse singla like this.
When not having object to block between the described emission element 111 and described receiving-member 112 of described sensor, described receiving-member 112 receives signal that is lasting or rule interval, and this shows do not have object to fall.
Circulating motion object 808 described in any one in described load portion section 801 fall and through space described emission element 111 and described receiving-member 112, described circulating motion object 808 can block at some time point the signal that emission element 111 sends, and makes it not have to arrive receiving-member 112 in time.Therefore, described receiving-member 112 does not just receive at some time point the signal that emission element 111 sends, and then over a period, the signal received is no longer the signal of lasting or regular interval, according to this kind of irregularity of signal, described first detection module just can detect that object falls in real time, and to described control module 2 output detection signal.Here, term " in real time " has the implication that those skilled in the art understand routinely, and particularly, described delay mostly in real time is most object and falls into detection space scope institute's time spent, may be a few tenths of second, per centum second or several milliseconds.Described detection signal can be mechanical signal, such as position variation signal, pressure change signal and energy changing signal etc.; Preferably, described detection signal is electric signal or radio signal.
In turn, described control module 2 can receive the detection signal that described first detection module 1 exports, and exports executive signal to described execution module 3.As an example, described control module 2 can be mechanical type function unit, and it accepts mechanical detection signal---such as position variation signal, pressure change signal or energy changing signal etc., and be converted into executive signal, send to described execution module 3.In this case, described mechanical type function unit can comprise leverage with the change of response position signal, or comprises hydraulic actuating cylinder or air cylinder with the change of response pressure signal, or comprises elastic energy storage parts to respond the change of energy signal.
Preferentially, described control module 2 can be electronic type function unit, and it accepts the detection signal of electronic type---such as electric signal or radio signal etc., and be converted into executive signal, send to described execution module 3.In this case, described electronic type function unit can comprise electronic signal receptor and electronic signal conv, and the pendant thing electric signal of reception is converted to executive signal.
It will be appreciated by those skilled in the art that, the concrete physical structure of described control module 2 is not the designing points of main embodiment of the present invention, therefore, it is no matter the technical scheme of control module disclosed in before present patent application is announced, or the technical scheme of disclosed control module after present patent application is announced, as long as this control module can be used in the technical scheme of main embodiment of the present invention record, the present invention just can use such control module, and can not affect novelty of the present invention.In fact, this is formerly disclosed or can be non-patent technology in rear disclosed control module, also can be patented technology.
Similarly, described executive signal can be mechanical type executive signal---such as position variation signal, pressure change signal or energy changing signal etc. also can be electronic type executive signal---such as electric signal or radio signal.
Described execution module 3 can receive the executive signal that described control module 2 exports, and to described brake module output action signal.
As an example, described execution module 3 can be mechanical type execution unit, and it accepts mechanical executive signal---such as position variation signal, pressure change signal or energy changing signal etc., and be converted into actuating signal, send to described brake module.In this case, described mechanical type execution unit can comprise leverage, gear mechanism etc. with the change of response position signal, or comprise hydraulic actuating cylinder or air cylinder with the change of response pressure signal, or comprise elastic energy storage parts to respond the change of energy signal.
Preferentially, described execution module 3 is electronic type execution units, and it accepts the executive signal of electronic type---such as electric signal or radio signal etc., and be converted into actuating signal, send to described brake module.In this case, described electronic type execution unit can comprise electronic signal receptor and electronic signal conv, and the execution electric signal of reception is converted to actuating signal.
It will be appreciated by those skilled in the art that, the designing points of main embodiment of the present invention does not lie in the concrete physical structure of described execution module 3, therefore, it is no matter the technical scheme of execution module disclosed in before present patent application is announced, or the technical scheme of disclosed execution module after present patent application is announced, as long as this execution module can be used in the technical scheme of main embodiment of the present invention record, the present invention just can use such control module.
Similarly, described actuating signal can be mechanical type actuating signal---such as position variation signal, pressure change signal or energy changing signal etc. also can be electronic type actuating signal---such as electric signal or radio signal.
Described brake module can receive the actuating signal that described execution module 3 exports, and circulating movement apparatus described in stop.
As an example, described brake module can be mechanical type stop parts, and it accepts mechanical executive signal---such as position variation signal, pressure change signal or energy changing signal etc., and use it for circulating movement apparatus described in stop.In this case, described mechanical type stop parts can comprise leverage, gear mechanism etc. with the change of response position signal, or comprise hydraulic actuating cylinder or air cylinder with the change of response pressure signal, or comprise elastic energy storage parts to respond the change of energy signal.
Preferentially, described brake module is electronic type stop parts, and it accepts the actuating signal of electronic type---such as electric signal or radio signal etc., and use it for circulating movement apparatus described in stop.In this case, described electronic type stop parts can comprise electronic signal receptor and electronic signal binary pair.
Be understandable that, described safety guard also may be used for detecting falling of non-cyclic motion object or static object, and performs safety precautions to mechanical equipment and personnel.Therefore, its detection module, control module, execution module and brake module---circulating motion object, non-cyclic motion object or static object---can do the adjustment of corresponding 26S Proteasome Structure and Function according to the object kind that will detect.
The load transfer device that the present invention relates to can be circulation load transfer device, also can be acyclic load transfer device, its designing points be, with regard to gravitational vector direction, described sensor should be arranged on the below of described conveying tape or chain, so that described sensor can detect the object fallen.
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In fact, described sensor 11 all need not be in the below of the described load portion section 801 of described circulation tape or chain 800.As modification, the emission element 111 of described sensor 110 is positioned near the top of the first end of described load portion section 801, and the receiving-member 112 of described sensor 110 is positioned at the close beneath of the second end of described load portion section 801.Like this, the line between the first end of the line between emission element 111 with receiving-member 112 and described load portion section 801 and the second end is crossing.And described emission element 111 is so designed with described receiving-member 112: described emission element 111 is launched multi beam and detected light beam, and described receiving-member 112 can accept described multi beam and detect light beam.Further, when described circulation tape or chain 800 static, have at least a branch of detection light beam 4 to point to each circulating motion object 808 in described load portion section 801.Therefore, when not having circulating motion object 808 to come off, the multi beam that described emission element 111 is launched detects light beam 4 and is all interdicted by each the circulating motion object 808 in described load portion section 801, and described receiving-member 112 can't accept any optical signal, and this shows do not have object to come off.When any one the circulating motion object 808 in described load portion section 801 falls, optical signal blocking is removed, and described receiving-member 112 receives at least a branch of detection light beam 4, and this shows to have at least an object to fall.
As modification, the emission element 111 of described sensor 110 is positioned near the top of the second end of described load portion section 801, and the receiving-member 112 of described sensor 110 is positioned at the close beneath of the first end of described load portion section 801; Described emission element 111 is launched multi beam and is detected light beam 4, and described receiving-member 112 can accept described multi beam and detect light beam 4; Further, when described circulation tape or chain 800 static, have at least a branch of detection light beam 4 to point to each circulating motion object 808 in described load portion section 801.
As modification, the emission element 111 of described sensor 110 is positioned at the close beneath of the second end of described load portion section 801, and the receiving-member 112 of described sensor 110 is positioned near the top of the first end of described load portion section 801; Described emission element 111 is launched multi beam and is detected light beam, and described receiving-member 112 can accept described multi beam and detect light beam; Further, when described circulation tape or chain 800 static, have each the circulating motion object 808 in load portion section 801 described at least a branch of detection beam-pointing.
As modification, the emission element 111 of described sensor 110 is positioned at the close beneath of the first end of described load portion section 801, and the receiving-member 112 of described sensor 110 is positioned near the top of the second end of described load portion section 801; Described emission element 111 is launched multi beam and is detected light beam, and described receiving-member 112 can accept described multi beam and detect light beam; Further, when described circulation tape or chain 800 static, have each the circulating motion object 808 in load portion section 801 described at least a branch of detection beam-pointing.
As preferred embodiment, with regard to gravitational vector direction, described sensor 110 is arranged on the below of the described load portion section 801 of described circulation tape or chain 800; And circulating motion object 808 described in any one in described load portion section 801 fall and through space described emission element 111 and described receiving-member 112, described first detection module can detect that object falls in real time, and to described control module 2 output detection signal.
According to the first specific embodiment of safety guard of the present invention, described safety guard is for detecting falling of circulating motion object, and safety precautions is performed to load transfer device and personnel, wherein, on the circulation tape that described circulating motion object 808 is installed in the circulating movement apparatus of described load transfer device or chain 800, and described circulation tape or chain 800 comprise load portion section 801 and unloaded portion section 802;
It is characterized in that: described safety guard comprises first detection module 1, control module 2, execution module 3 and brake module;
Described first detection module 1 comprises sensor 110 and support 120, and wherein, described sensor comprises emission element 111 and receiving-member 112, and described support is used for fixing described sensor, and described support is installed on the static body of described load transfer device;
The emission element 111 of described sensor 110 is arranged on the below of described load portion section 801 by means of the first bracket 121 of described support 120, and is positioned at the first end of described load portion section 801; Further, the receiving-member 112 of described sensor 110 is arranged on the below of described load portion section 801 by means of the second bracket 122 of described support 120, and is positioned at the second end of described load portion section 801;
Circulating motion object 808 described in any one in described load portion section 801 fall and through space described emission element 111 and described receiving-member 112, described first detection module can detect that object falls in real time, and to described control module 2 output detection signal;
Described control module 2 can receive the detection signal that described first detection module 1 exports, and exports executive signal to described execution module 3;
Described execution module 3 can receive the executive signal that described control module 2 exports, and to described brake module output action signal;
Described brake module can receive the actuating signal that described execution module 3 exports, and circulating movement apparatus described in stop.
As the modification of this first specific embodiment, the position of emission element 111 and receiving-member 112 can exchange.Therefore, with regard to gravitational vector direction, the emission element 111 of described sensor 110 is arranged on the below of described load portion section 801 by means of the first bracket 121 of described support 120, and is positioned at the second end of described load portion section 801; Further, the receiving-member 112 of described sensor 110 is arranged on the below of described load portion section 801 by means of the second bracket 122 of described support 120, and is positioned at the first end of described load portion section 801.
Described sensor 110 can be electromagnetic sensor, ultrasonic transduter, X ray sensor, quantum wave sensor, and its main points are that the object fallen can stop described energy wave propagation.
Based on above-mentioned main embodiment, preferred embodiment, specific embodiment or modification, according to the second specific embodiment of the present invention, described sensor 110 is correlation type opto-electronic pickups; When described circulating motion object 808 fall and through space the described emission element 111 of described correlation type opto-electronic pickup and described receiving-member 112, described circulating motion object 808 interdicts the light communication between described emission element 111 and described receiving-member 112, and trigger described first detection module 1 and produce detection signal, thus described first detection module has detected that object falls and to described control module 2 output detection signal.In fact, light wave is also a kind of electromagnetic wave, this refers to visible ray.Preferably, described optical signal is lower powered monochromatic laser beam.Correlation type opto-electronic pickup refers to that emission element can to receiving-member outgoing beam.
As modification, described sensor 110 is correlation type infradred sensors; When described circulating motion object 808 fall and through space the described emission element 111 of described correlation type infradred sensor and described receiving-member 112, described circulating motion object 808 interdicts the infrared communication between described emission element 111 and described receiving-member 112, and trigger described first detection module 1 and produce detection signal, thus described first detection module has detected that object falls and to described control module 2 output detection signal.
As modification, described sensor 110 is correlation type UV sensor; When described circulating motion object 808 fall and through space the described emission element 111 of described correlation type UV sensor and described receiving-member 112, described circulating motion object 808 interdicts the ultraviolet communications between described emission element 111 and described receiving-member 112, and trigger described first detection module 1 and produce detection signal, thus described first detection module has detected that object falls and to described control module 2 output detection signal.
Falling of finding such as bolt or nut on circulation tape or chain 800 also can cause potential safety hazard, because the bolt fallen or nut can cause blocking of kinematic scheme very much.Therefore it will be more preferred that described safety guard can detect the less object that falls.
For this reason, based on above-mentioned main embodiment, preferred embodiment, specific embodiment or modification, according to the 3rd specific embodiment of the present invention, the described emission element 111 of described correlation type opto-electronic pickup can launch multi beam light, wherein, described multi beam light is basically perpendicular to the Width of described circulation tape or chain 800; Further, described multi beam light arranges by the whole width of the spacing determined along described circulation tape or chain 800, and wherein, the described spacing determined is less than the smallest dimension in the three dimension scale of described circulating motion object.Be covered with a planar range of the below of described load portion section 801 due to compact arranged light beam, any small articles falls to this planar range all can block at least Ray Of Light, thus detection trigger module action.The three dimension scale of described circulating motion object refers to the length of the circulating motion object of described three-dimensional on each dimension direction, the such as length of a three-dimensional body.The minimum value of getting in the length of three-dimensional body is exactly described smallest dimension.As long as the distance between light beam is less than the smallest dimension of described object, falling of described object just can be detected.
As an alternative, described correlation type opto-electronic pickup can replace with the electromagnetic sensor of correlation type, ultrasonic transduter, X ray sensor, quantum wave sensor.Described light beam can be various forms of energy beam.
Falling of any object on section 802 region, unloaded portion of described circulation tape or chain 800 also can cause the potential safety hazard of machinery and equipment, and it is preferred for therefore arranging the second detection module at section 802 place of unloaded portion of described circulation tape or chain 800.
For this reason, based on above-mentioned main embodiment, preferred embodiment, specific embodiment or modification, according to the 4th specific embodiment of the present invention, described safety guard also comprises the second detection module, wherein, with regard to gravitational vector direction, described second detection module is arranged on the below of the described unloaded portion section 801 of described circulation tape or chain 800;
Described second detection module comprises sensor and support composition, wherein, the described sensor of described second detection module comprises emission element and receiving-member, and described support is used for fixing described sensor, and described support is installed on the static body of described load transfer device; When described circulating motion object 808 fall and through space the described emission element of described second detection module and described receiving-member, described second detection module has detected that object falls and to described control module 2 output detection signal;
Described control module 2 can receive the detection signal that described first detection module 1 exports, and exports executive signal to described execution module 3;
Described execution module 3 can receive the executive signal that described control module 2 exports, and to described brake module output action signal;
Described brake module can receive the actuating signal that described execution module 3 exports, and circulating movement apparatus described in stop.
Based on above-mentioned main embodiment, preferred embodiment, specific embodiment or modification, according to the 5th specific embodiment of the present invention, described control module 2 comprises programmable logic controller (PLC) 201, wherein, described programmable logic controller (PLC) 201 can receive the detection signal that described first detection module 1 exports, and exports executive signal to described execution module 3.Programmable logic controller (PLC) 201 can carry out software programming by various condition of service, product specification parameter due to it, and thus described safety guard has good extendability and applicability.
Based on above-mentioned main embodiment, preferred embodiment, specific embodiment or modification, according to the 5th specific embodiment of the present invention, described execution module 3 comprises operation contactless switch signal generation unit and band-type brake contactless switch signal generation unit, wherein, described operation contactless switch signal generation unit produces and runs contactless switch signal, for controlling the operation contactless switch of the feeding electric motors of described load transfer device, cut off motor power, and described band-type brake contactless switch signal produces band-type brake contactless switch signal, for controlling the band-type brake contactless switch of the motor internal contracting brake of described load transfer device, cut off band-type brake power supply.This 5th specific embodiment cuts off motor power and band-type brake contactless switch simultaneously.It will be understood by those skilled in the art that load transfer device generally all has motor, the brake equipment of motor can comprise band-type brake contactless switch.
Safety guard of the present invention can be used for all kinds of load transfer device, is particularly useful for moving sidewalk or escalator installation.
According to the detailed description of the invention of moving sidewalk of the present invention or escalator installation, described moving sidewalk or escalator comprise safety guard as herein described, wherein:
Described load transfer device is described moving sidewalk or escalator installation;
Described circulating movement apparatus comprises the footway of circulation or the ladder of circulation;
The footway of described circulation or the ladder of circulation comprise described circulation link chain 800;
Described circulating motion object 808 is mounted in the pedal on the footway of described circulation or the ladder of circulation.
For clarity sake, multiple technical schemes of moving sidewalk or escalator installation are described below:
According to the first specific embodiment of moving sidewalk or escalator installation, moving sidewalk or escalator installation comprise circulating movement apparatus and safety guard; Described circulating movement apparatus comprises the footway of circulation or the ladder of circulation; The footway of described circulation or the ladder of circulation comprise described circulation link chain 800; Described circulation link chain 800 comprises load portion section 801 and unloaded portion section 802; The footway of described circulation or the ladder of circulation are provided with pedal;
Described safety guard for detecting falling of described pedal, and performs safety precautions to moving sidewalk or escalator installation and personnel;
It is characterized in that: described safety guard comprises first detection module 1, control module 2, execution module 3 and brake module;
Described first detection module 1 comprises sensor 110 and support 120, wherein, described sensor comprises emission element 111 and receiving-member 112, and described support is used for fixing described sensor, and described support is installed on the static body of described moving sidewalk or escalator installation;
With regard to gravitational vector direction, the emission element 111 of described sensor 110 is arranged on the below of described load portion section 801 by means of the first bracket 121 of described support 120, and is positioned at the first end of described load portion section 801; Further, the receiving-member 112 of described sensor 110 is arranged on the below of described load portion section 801 by means of the second bracket 122 of described support 120, and is positioned at the second end of described load portion section 801;
Pedal described in any one in described load portion section 801 fall and through space described emission element 111 and described receiving-member 112, described first detection module can detect that described pedal falls in real time, and to described control module 2 output detection signal;
Described control module 2 can receive the detection signal that described first detection module 1 exports, and exports executive signal to described execution module 3;
Described execution module 3 can receive the executive signal that described control module 2 exports, and to described brake module output action signal;
Described brake module can receive the actuating signal that described execution module 3 exports, and moving sidewalk described in stop or escalator installation.
As the second specific embodiment of moving sidewalk or escalator installation, described sensor 110 is correlation type opto-electronic pickups; When described pedal fall and through space the described emission element 111 of described correlation type opto-electronic pickup and described receiving-member 112, described pedal interdicts the light communication between described emission element 111 and described receiving-member 112, and trigger described first detection module 1 and produce detection signal, thus described first detection module has detected that pedal falls and to described control module 2 output detection signal.
As the 3rd specific embodiment of moving sidewalk or escalator installation, described control module 2 comprises programmable logic controller (PLC) 201, wherein, described programmable logic controller (PLC) 201 can receive the detection signal that described first detection module 1 exports, and exports executive signal to described execution module 3; Described execution module 3 comprises operation contactless switch signal generation unit and band-type brake contactless switch signal generation unit, wherein, described operation contactless switch signal generation unit produces and runs contactless switch signal, for controlling the operation contactless switch of the feeding electric motors of described load transfer device, and described band-type brake contactless switch signal produces band-type brake contactless switch signal, for controlling the band-type brake contactless switch of the motor internal contracting brake of described load transfer device.
Safety guard as herein described for detecting footway upper surface pedal accidental falling, to avoid having an accident.Safety guard is made up of the fixed support of a pair correlation type opto-electronic pickup and necessity.The transmitting terminal of opto-electronic pickup and receiving end are arranged on the two ends of footway linear portion respectively, are positioned at the below of pedal.When footway normally works, have no occluder in opto-electronic pickup detection range.When upper surface certain or a few place's pedal accidental falling, the transmitting-receiving of the pedal shading light electric transducer fallen, photoelectric output signal, to master controller programmable logic controller (PLC) 201, cuts off motor power and band-type brake power supply, brake sticking brake, makes footway out of service immediately.
If consider the situation that pedal tilts to fall, then can do above-mentioned monitoring to the linear portion of pedal both sides, guarantee Timeliness coverage fault.
The safety guard that automatic sidewalk pedal provided by the invention falls comprises detection module, control module and execution module, described control module is connected with described detection module and described execution module circuit respectively, described execution module is connected with the control system of moving sidewalk, described detection module is positioned at the below of moving sidewalk upper surface pedal, described detection module comprises sensor, when the pedal accidental falling of upper surface, the pedal fallen can trigger described sensor and send detection signal, described control module receives and processes the backward described execution module of detection signal and sends executive signal, described execution module receives and output action signal after processing execution signal, the control system of moving sidewalk is controlled to control the running of moving sidewalk by actuating signal.
Preferably, described sensor is correlation type opto-electronic pickup, described correlation type opto-electronic pickup comprises transmitting terminal and receiving end, described transmitting terminal and receiving end are arranged on the two ends below moving sidewalk upper surface pedal respectively, described detection module comprises support, and described support is used for fixing described transmitting terminal and receiving end.When correlation type opto-electronic pickup normally works, transmitting terminal sends tube bank to receiving end, when not occurring falling when being positioned at the walkway steps above opto-electronic pickup and normally running, beam emissions between transmitting terminal and receiving end is unblocked, and now correlation type opto-electronic pickup sends the signal representing that moving sidewalk normally runs all the time unchangeably to control module.When upper surface certain or a few place's pedal accidental falling, the light beam of described correlation type opto-electronic pickup is blocked by pedal, this is that opto-electronic pickup will send to control module the detection signal representing footway abnormal running voluntarily, described control module receives and processes the backward described execution module of detection signal and sends executive signal, described execution module receives and output action signal after processing execution signal, is controlled the control system of moving sidewalk to control the running of moving sidewalk by actuating signal.Correlation type opto-electronic pickup is accurately run, and must make transmitting terminal and the receiving end alignment of opto-electronic pickup, can avoid like this occurring blind area, therefore detection module comprises support to be used for fixing transmitting terminal and receiving end.
Advantageously, in order to make structure simple and efficiency is high, the transmitting terminal of described correlation type opto-electronic pickup and receiving end are arranged on the two ends of the linear portion below moving sidewalk upper surface pedal respectively.
Preferably, described execution module comprises operation contactless switch signal generation unit and band-type brake contactless switch signal generation unit, described operation contactless switch signal generation unit and band-type brake contactless switch signal generation unit produce respectively and run contactless switch signal and band-type brake contactless switch signal, run contactless switch signal and be used for controlling run contactless switch, and run the feeding electric motors that contactless switch is used for controlling moving sidewalk.Band-type brake contactless switch signal is used for controlling lock contactless switch.
Preferably, described sensor is pressure sensor, described detection module comprises supporting plate, described supporting plate is positioned at the below of moving sidewalk upper surface pedal, described pressure sensor and described blade contacts, when the pedal accidental falling of upper surface, the pedal fallen collides when dropping on described supporting plate and causes the vibrations of described supporting plate, elastic deformation is there is thus sends detection signal to described control module in the inductive means of described pressure sensor due to supporting plate vibrations, described control module sends executive signal to described execution module, described execution module output action signal to moving sidewalk moral control system to control the running of moving sidewalk.
Pressure sensor is the most widely used a kind of sensor.Traditional pressure sensor is based on the device of physical construction type, and with the deformation indicated pressure of elastic element, but this scantling of structure is large, quality light, and electricity can not be provided to export.Along with the development of semiconductor technology, semiconductor pressure sensor also arises at the historic moment.Be characterized in that volume is little, quality is light, accuracy is high, good temp characteristic.The present invention adopts semiconductor pressure sensor, collide with supporting plate after pedal falls, supporting plate is caused to produce vibration, thus the pressure sensitive component undergoes deformation of activation pressure sensor, this is that detection signal is issued control module by pressure sensor, control module send executive signal give described execution module, described execution module output action signal to moving sidewalk moral control system to control the running of moving sidewalk.
Advantageously, described control module comprises programmable logic controller (PLC) 201, and described programmable logic controller (PLC) 201 receives detection signal, and exports corresponding executive signal to execution module.
Programmable logic controller (PLC) Programmable Logic Controller, PLC, it adopts a class programmable memory, for its internally stored program, actuating logic computing, sequence control, regularly, counting and the user oriented instruction such as arithmetical operation, and by numeral or analog pattern input/output various types of machinery of control or production process.Advantage be easy to use, programming is simple, and function is strong, the ratio of performance to price is high.
The advantage of the safety guard that automatic sidewalk pedal provided by the invention falls and the moving sidewalk that comprises it is:
1 machinery and electrical structure are more succinct, install more convenient;
The condition of 2 traditional detection must forward fixed position place in pedal neutral of falling just can detect fault, and there is hysteresis quality the time; And this device can detect the mode of operation of pedal upper surface, monitor in real time, the very first time pinpoints the problems and takes safety method, safety and reliability.
More than describe preferred specific embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design concept according to the present invention can make many modifications and variations without the need to creative work.Therefore; all technical personnels in the art according to design concept of the present invention on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should within the scope of the present invention and/or by the determined protection domain of claims.
Claims (10)
1. safety guard, it is for detecting falling of circulating motion object, and safety precautions is performed to load transfer device and personnel, wherein, on the circulation tape that described circulating motion object (808) is installed in the circulating movement apparatus of described load transfer device or chain (800), and described circulation tape or chain (800) comprise load portion section (801) and unloaded portion section (802);
It is characterized in that: described safety guard comprises first detection module (1), control module (2), execution module (3) and brake module;
Described first detection module (1) comprises sensor (110) and support (120), wherein, described sensor comprises emission element (111) and receiving-member (112), and described support is used for fixing described sensor, and described support is installed on the static body of described load transfer device; Circulating motion object (808) described in any one in described load portion section (801) fall and through space described emission element (111) and described receiving-member (112), described first detection module can detect that object falls in real time, and to described control module (2) output detection signal;
Described control module (2) can receive the detection signal that described first detection module (1) exports, and exports executive signal to described execution module (3);
Described execution module (3) can receive the executive signal that described control module (2) exports, and to described brake module output action signal;
Described brake module can receive the actuating signal that described execution module (3) exports, and circulating movement apparatus described in stop.
2. according to safety guard according to claim 1; it is characterized in that; with regard to gravitational vector direction, described sensor (110) is arranged on the below of the described load portion section (801) of described circulation tape or chain (800).
3. according to safety guard according to claim 2, it is characterized in that, with regard to gravitational vector direction, the emission element (111) of described sensor (110) is arranged on the below of described load portion section (801) by means of first bracket (121) of described support (120), and is positioned at the first end of described load portion section (801); And, the receiving-member (112) of described sensor (110) is arranged on the below of described load portion section (801) by means of second bracket (122) of described support (120), and is positioned at the second end of described load portion section (801).
4. according to the safety guard according to any one of claims 1 to 3, it is characterized in that, described sensor (110) is correlation type opto-electronic pickup; When described circulating motion object (808) fall and through space the described emission element (111) of described correlation type opto-electronic pickup and described receiving-member (112), described circulating motion object (808) interdicts the light communication between described emission element (111) and described receiving-member (112), and trigger described first detection module (1) generation detection signal, thus described first detection module has detected that object falls and to described control module (2) output detection signal.
5. according to safety guard according to claim 4, it is characterized in that, the described emission element (111) of described correlation type opto-electronic pickup can launch multi beam light, wherein, described multi beam light is basically perpendicular to the Width of described circulation tape or chain (800); Further, described multi beam light arranges by the whole width of the spacing determined along described circulation tape or chain (800), and wherein, the described spacing determined is less than the smallest dimension in the three dimension scale of described circulating motion object.
6. according to the safety guard according to any one of claims 1 to 3, it is characterized in that, described sensor (110) is correlation type infradred sensor; When described circulating motion object (808) fall and through space the described emission element (111) of described correlation type infradred sensor and described receiving-member (112), described circulating motion object (808) interdicts the infrared communication between described emission element (111) and described receiving-member (112), and trigger described first detection module (1) generation detection signal, thus described first detection module has detected that object falls and to described control module (2) output detection signal.
7. according to safety guard according to claim 1, it is characterized in that, described safety guard also comprises the second detection module, wherein, with regard to gravitational vector direction, described second detection module is arranged on the below in described unloaded portion section (802) of described circulation tape or chain (800);
Described second detection module comprises sensor and support composition, wherein, the described sensor of described second detection module comprises emission element and receiving-member, and described support is used for fixing described sensor, and described support is installed on the static body of described load transfer device; When described circulating motion object (808) fall and through space the described emission element of described second detection module and described receiving-member, described second detection module has detected that object falls and to described control module (2) output detection signal (5);
Described control module (2) can receive the detection signal that described first detection module (1) exports, and exports executive signal to described execution module (3);
Described execution module (3) can receive the executive signal that described control module (2) exports, and to described brake module output action signal;
Described brake module can receive the actuating signal that described execution module (3) exports, and circulating movement apparatus described in stop.
8. safety guard according to any one of claim 1 to 3; it is characterized in that: described control module (2) comprises programmable logic controller (PLC) (201); wherein; described programmable logic controller (PLC) (201) can receive the detection signal that described first detection module (1) exports, and exports executive signal to described execution module (3).
9. safety guard according to any one of claim 1 to 3; it is characterized in that: described execution module (3) comprises operation contactless switch signal generation unit and band-type brake contactless switch signal generation unit; wherein; described operation contactless switch signal generation unit produces and runs contactless switch signal (6); for controlling the operation contactless switch of the feeding electric motors of described load transfer device; and described band-type brake contactless switch signal produces band-type brake contactless switch signal (7), for controlling the band-type brake contactless switch of the motor internal contracting brake of described load transfer device.
10. moving sidewalk or escalator installation, is characterized in that: described moving sidewalk or escalator comprise the safety guard according to any one of claim 1 to 9, wherein:
Described load transfer device is described moving sidewalk or escalator installation;
Described circulating movement apparatus comprises the footway of circulation or the ladder of circulation;
The footway of described circulation or the ladder of circulation comprise described circulation link chain (800);
Described circulating motion object (808) is mounted in the pedal on the footway of described circulation or the ladder of circulation.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106865395B (en) * | 2015-12-10 | 2018-04-10 | 江南嘉捷电梯股份有限公司 | A kind of escalator or automatic sidewalk pedal fracture protecting device |
| CN105565137B (en) * | 2016-01-16 | 2017-07-18 | 李荣华 | Escalator accident jerk monitors safety device |
| CN111655605B (en) * | 2018-02-16 | 2022-02-25 | 三菱电机大楼技术服务株式会社 | Step falling detection device of escalator |
| ES2932197T3 (en) * | 2018-09-10 | 2023-01-17 | Tk Escalator Norte S A | Risk detection system for a passenger movement facility |
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Effective date of registration: 20180508 Address after: 215122 28 Weixin Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: Jiangnan Jiajie Lift Co., Ltd., Jiangsu Address before: 215122 No. 718 Ting Ting Road, Suzhou Industrial Park, Suzhou, Jiangsu. Patentee before: SJEC Corporation |
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